Table mechanism for box-making machines.



E. G. NORTHRUP.

TABLE MECHANISM FOR BOX MAKING MACHINES.

APPLIOATIONIFILED 312.21, 1911.

1,033,191, Patnted July 23, 1912.

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B. c, NORTHRUP. TABLE MECHANISM FOR BOX MAKING MACHINES.

APPLICATION FILED TEB.21, 1911.

1,033,191 Patented July 23, 1912.

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E. O. NORTHRUP.

TABLE MECHANISM FOR BOX MAKING MACHINES.

APPLICATION IILIBD 33.21, 1911 1,033,191. Patented July 23,1912.

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i I 7 E i E r P I I Q [5" 8 i 0 /0 i j j J T i UNITED STATES PATENTOFFICE,

ELMER C. NORTI-IRUP, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TO AUTOMATICMACHINE COMPANY, OF SAN FRANCISC FORNIA.

0, CALIFORNIA, A CORPORATION OF CALI- TABLE MECHANISM FOR BOX-MAKINGMACHINES.

To all whom it may concern:

Be it known that I, ELMER C. NORTHRUP, a citizen of the United States,residing at San Francisco, in the county of San F rancisco and State ofCalifornia, have invented a new and useful Table Mechanism for Box-Making Machines, of which the following is a specification.

This invention relates to a modified form of table mechanism adapted foruse in box making machines of a type shown in an application of minefiled February 15, 1911, Serial No. 608,817, the present invention being particularly adapted for use in making orange boxes wherein, inaddition to the two heads, a third or partition piece is required to besupported by the table.

Referring to the drawings: Figure 1 is a side elevation of a machine inwhich the mechanism is employed. Fig. 2 is a side elevation on anenlarged scale of the invention. Fig. 3 is a front elevation of what isshown in Fig. 2. Fig. 4 is a plan View of what is shown in Fig. 3.

1 designates the main frame of the machine with a main driving shaft 2carrying a pinion 3 which drives a gear 1 on the shaft 5. The shaft 5 ismounted in bearings 6 and carries gears 7 which mesh with gears 8 oncounter-shafts 9 in bearings 10 supported by brackets 11. Pinions 12 onthe shafts 9 mesh with gears 18 which are preferably formed integralwith cams 1 1. The pinion 12 is one-third the size of gear 13, so thateach cam 14 is driven at one-third the speed of the shaft 5. Each cam 14has three faces 15, 16 and 17, as shown in Fig. 2, and resting on thecams are rollers 18 supported by brackets 19 on a table 20, the table 20having two end faces 21 and one center face 22, the two end faces 21being adapted to support the end heads of the box and the center face 22adapted to support the center head or partition of the box, as indicatedin Figs. 3 and 41.

The table 20 has a shoe 23 at each end which slides in ways 24: on themain frame 1 guiding the table in a vertical movement.

The object of moving the table vertically is to support the box at thedesired elevation for nailing; thus in the operation of the machine, asthe cams 14: turn at onethird the speed of the shaft 5, as the cam faces17 ride under the rollers 18, the table 20 is supported at the properelevation to Specification of Letters Patent.

Application filed February 21, 1911.

Serial No, 610,084.

hold the three heads in position for receiving the first side and permitthe same to be nailed to the heads. The table is maintained in thisposition during this operation by reason of the cam face 17 beingconcentric with the shaft 5. At the conclusion of nailing the firstside, the depressed faces 25 of the cam arrive at the rollers 18 and mitthe table to lower so that it will clear the box as the box is turnedand while the table is thus lowered, the box is turned onefourth aroundby mechanism not shown herein. After the box has been turned, the faces15 are moved under the rollers 18, thus elevating the table to a pointwhere the heads will be in a proper position to re; ceive the bottompiece, which is moved onto the heads by mechanism not herein shown, andnailed while the face 15 travels along the rollers 18 maintaining thetable stationary during this operation, at the conclusion of which thedepressed portion of the cams reaches the rollers 18 and permits thetable to descend to allow the box to again be turned one-fourth. Whenthe box has thus been turned one-fourth, the cam faces 16 are movedunder the rollers 18, lifting the table to the desired elevation to holdthe heads at the right level to receive the last side. It will be notedthat the heads are supported in this position at a trifle lowerelevation than during the nailing of the first side on account of thedifference in thickness of the first side which has already been nailedto the heads, for which reason the cam face 16 is slightly lower thanthe cam face 17, as clearly shown in Fig. 2. The last side having beenmoved onto the heads and nailed thereto, while the table is supported bythe cam face 16, the completed box is pushed off while the rollers 18and table are again slightly lifted as the cam faces 17 pass under therollers and the table is then once more in a position to support theheads for another box to receive the first side, whereupon the action isrepeatedas before.

That I claim is:

1. In a table mechanism for box making machines, a vertically movingtable, and a pair of cams under the table for operating the table, eachof the said cams having three cam faces proportioned to hold the tableat the right elevation for receiving the parts to be nailed and supportthe same during er- I Patented July 23, 1912.

such nailing, and having two depressed can'l faces which permit thetable to descend be low the box to permit the latter to be turned fromone position to another.

2. In a table mechanism for box making machines, a frame having a pairof vertical ways, a horizontal table with a shoe at each end slidahle inthe associated way, a roller at each end of the table, a shaft, and acam on the shaft under each roller, each cam having three cam facesproportioned to hold the table at the desired elevation during nailingand having two depressed oaln faces which permit the table to descendbelow the box to permit the box to be turned from one position toanother.

In testimony whereof, I have hereunto set my hand at Los Angeles,California,this 31 day of January 1911.

ELMER C. NORTH RUP.

In presence of Gr. F. HAcKLnY, FRANK L. A. GRAHAM.

Copies of this patent may be obtained. for five cents each, byaddressing the Commissioner of Patents, Washington, D. C.

